:root {
    /* Paper / ink (retro poster) */
    --bg: #F3ECDD;
    /* 生成り */
    --paper: #FFFBF2;
    /* 紙（白すぎ回避） */
    --ink: #1E1B16;
    /* インク */
    --muted: rgba(30, 27, 22, .68);
    --radius: 12px;

    /* Retro palette */
    --green: #173A33;
    /* 深緑 */
    --red: #9C3A33;
    /* えんじ */
    --yellow: #C6A24A;
    /* くすみ金 */
    --shadow: rgba(0, 0, 0, .12);

    /* UI lines */
    --line: rgba(30, 27, 22, .18);
    --line-strong: rgba(23, 58, 51, .55);

    /* Fonts */
    --f-serif: "Shippori Mincho", serif;
    --f-body: "Zen Maru Gothic", system-ui, sans-serif;
    /* fallback */
}

/* =========================
 Base & Reset
========================= */
* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    /* 横スクロール完全防止 */
    width: 100%;
}

body {
    font-family: var(--f-body);
    background: var(--bg);
    color: var(--ink);
    line-height: 1.85;
    letter-spacing: .04em;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Utility Classes */
.sp-br {
    display: none;
}

.center {
    text-align: center;
}

.wide {
    width: 100%;
}

.muted {
    color: var(--muted);
}

.muted2 {
    color: rgba(255, 255, 255, .75);
}

.small {
    font-size: .92rem;
}

/* =========================
 Buttons
========================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 22px;
    border-radius: 999px;
    font-weight: 700;
    border: 2px solid transparent;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
    cursor: pointer;
    user-select: none;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--paper);
    color: var(--green);
    border-color: var(--yellow);
    box-shadow: 6px 6px 0 rgba(198, 162, 74, .70);
    font-family: var(--f-bold);
    letter-spacing: .08em;
}

.btn-primary:hover {
    box-shadow: 4px 4px 0 rgba(198, 162, 74, .70);
}

.btn-ghost {
    background: var(--paper);
    color: var(--green);
    border-color: var(--line-strong);
    box-shadow: 4px 4px 0 rgba(0, 0, 0, .10);
    font-family: var(--f-bold);
    letter-spacing: .06em;
}

.btn-ghost:hover {
    box-shadow: 2px 2px 0 rgba(0, 0, 0, .10);
}

/* =========================
 Topbar
========================= */
.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(243, 236, 221, .92);
    backdrop-filter: blur(8px);
    border-bottom: 4px solid var(--green);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    width: 55px;
    /* 最適化サイズ */
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
}

.brand-mark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.brand-title {
    font-family: var(--f-bold);
    letter-spacing: .08em;
    font-size: .95rem;
    color: var(--green);
}

.brand-sub {
    font-family: var(--f-serif);
    color: var(--muted);
    font-size: .95rem;
}

/* =========================
 Hero (FV)
========================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: url("images/lostline_hero.jpg") center/cover no-repeat;
    border-bottom: 6px solid var(--green);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(20, 36, 31, 0.60), rgba(20, 36, 31, 0.72)),
        radial-gradient(circle at 30% 20%, rgba(198, 162, 74, 0.18), transparent 55%);
    z-index: 1;
}

.hero-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    /* Spacing system (Premium whitespace) */
    padding: 120px 0 96px;
    display: grid;
    justify-items: center;
    row-gap: 18px;
}

/* FVの横幅を少し絞る */
.hero-compact {
    max-width: 880px;
}

.hero-meta {
    margin: 0;
}

.pill {
    display: inline-flex;
    align-items: center;
    padding: 10px 18px;
    border-radius: 999px;
    background: rgba(0, 0, 0, .22);
    border: 1px solid rgba(255, 255, 255, .35);
    color: #fff;
    font-family: var(--f-bold);
    letter-spacing: .06em;
    font-size: .88rem;
}

.hero-title {
    font-family: var(--f-serif);
    font-size: 3.2rem;
    line-height: 1.18;
    margin: 0;
    text-shadow: 0 4px 20px rgba(0, 0, 0, .45);
    letter-spacing: .04em;
    /* 改行ルール最適化 */
    word-break: keep-all;
    overflow-wrap: break-word;
}

.hero-lead {
    font-family: var(--f-serif);
    font-size: 1.2rem;
    /* 少し大きく */
    margin: 0;
    max-width: 34em;
    line-height: 1.9;
    text-shadow: 0 2px 12px rgba(0, 0, 0, .45);
    opacity: .96;
}

/* CTA: Premium style */
.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 10px;
    align-items: center;
}

.btn-cta {
    background: rgba(255, 251, 242, .92);
    color: var(--green);
    border: 1px solid rgba(255, 255, 255, .55);
    box-shadow: 0 10px 22px rgba(0, 0, 0, .22), inset 0 0 0 1px rgba(23, 58, 51, .10);
    backdrop-filter: blur(6px);
    padding: 14px 26px;
    letter-spacing: .06em;
    transform: translateZ(0);
}

.btn-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(0, 0, 0, .26), inset 0 0 0 1px rgba(23, 58, 51, .14);
}

.hero-chip {
    margin: 14px 0 0;
    max-width: 42em;
    text-align: center;
    background: rgba(255, 255, 255, .08);
    border: 1px dashed rgba(255, 255, 255, .30);
    padding: 12px 16px;
    border-radius: 14px;
    color: rgba(255, 255, 255, .82);
    display: inline-flex;
    gap: 12px;
}

/* =========================
 Sections Base
========================= */
.section {
    padding: 80px 0;
}

.section.bg-dark {
    background: #10261f;
    color: #fff;
}

.section-title {
    text-align: center;
    font-family: var(--f-bold);
    color: var(--green);
    font-size: 2rem;
    line-height: 1.35;
    margin: 0 0 44px;
    letter-spacing: .12em;
    position: relative;
    text-wrap: balance;
    word-break: keep-all;
}

.section-title::after {
    content: "";
    display: block;
    width: 90px;
    height: 4px;
    background: rgba(198, 162, 74, .85);
    margin: 18px auto 0;
}

.section-title-dark {
    color: #fff;
}

.section-title-dark::after {
    background: rgba(198, 162, 74, .90);
}

.paper {
    background: var(--paper);
    border: 3px double var(--line-strong);
    padding: 34px;
    box-shadow: 8px 8px 0 rgba(0, 0, 0, .10);
}

.copy {
    margin: 0;
    font-size: 1rem;
    line-height: 1.9;
}

/* =========================
 Connection Cards
========================= */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-top: 22px;
}

.card {
    border: 2px solid var(--line-strong);
    padding: 18px;
    background: var(--paper);
}

.card-head {
    font-family: var(--f-bold);
    letter-spacing: .1em;
    color: var(--red);
    font-size: .95rem;
}

.card-title {
    font-family: var(--f-serif);
    font-size: 1.35rem;
    line-height: 1.45;
    margin: 6px 0 10px;
    letter-spacing: .06em;
}

.list {
    margin: 0;
    padding-left: 18px;
}

.list li {
    margin: 6px 0;
}

/* =========================
 Railway Appeal
========================= */
.railway-appeal {
    max-width: 760px;
    margin: 0 auto 40px;
}

#railway-appeal .section-title {
    margin-bottom: 22px;
}

.railway-lead {
    font-family: var(--f-serif);
    font-size: 1.7rem;
    line-height: 1.4;
    margin: 0 0 18px;
    color: var(--green);
    letter-spacing: .04em;
}

.railway-text {
    margin: 0 0 20px;
    font-size: 1rem;
    line-height: 1.9;
}

.appeal-photo {
    margin: 0 0 40px;
}

.appeal-photo img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 6px;
}

.appeal-photo figcaption {
    margin-top: 10px;
    font-size: .9rem;
    color: var(--muted);
    letter-spacing: .04em;
}

.appeal-photo.large {
    margin-bottom: 56px;
}

.appeal-photo.wide {
    margin: 56px 0;
}

.appeal-photo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin: 48px 0;
}

/* =========================
 Spec (開催概要)
========================= */
.spec-panel {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 18px;
    padding: 22px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .18);
}

.spec-key {
    border-radius: var(--radius);
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .14);
    padding: 18px;
}

.spec-key-title {
    font-family: var(--f-bold);
    letter-spacing: .08em;
    color: rgba(255, 255, 255, .92);
    font-size: .98rem;
    margin-bottom: 12px;
}

.spec-badges {
    display: grid;
    gap: 10px;
}

.spec-badge {
    padding: 12px 12px;
    border-radius: 14px;
    background: rgba(0, 0, 0, .18);
    border: 1px solid rgba(255, 255, 255, .14);
}

.spec-badge .k {
    font-family: var(--f-bold);
    letter-spacing: .06em;
    color: rgba(255, 255, 255, .82);
    font-size: .82rem;
}

.spec-badge .v {
    margin-top: 4px;
    font-family: var(--f-serif);
    color: rgba(255, 255, 255, .96);
    font-size: 1.12rem;
    line-height: 1.45;
}

.spec-badge .s {
    margin-top: 4px;
    font-size: .88rem;
    color: rgba(255, 255, 255, .70);
    line-height: 1.6;
}

.spec-body {
    border-radius: var(--radius);
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .14);
    padding: 18px;
}

.spec-dl {
    margin: 0;
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 12px 16px;
}

/* Spec DT Style Override (Integrated) */
.section.bg-dark .spec-dl dt {
    font-size: .90rem;
    font-weight: 700;
    letter-spacing: .12em;
    color: rgba(255, 255, 255, .72);
    line-height: 1.4;
    position: relative;
    padding-left: 14px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, .10);
}

.section.bg-dark .spec-dl dt:first-of-type {
    border-top: none;
    padding-top: 0;
}

.section.bg-dark .spec-dl dt::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    width: 4px;
    height: 14px;
    border-radius: 2px;
    background: rgba(198, 162, 74, .85);
}

.section.bg-dark .spec-dl dd {
    margin: 0;
    color: rgba(255, 255, 255, .92);
    line-height: 1.85;
    padding-bottom: 10px;
    padding-top: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, .10);
    border-top: 1px solid rgba(255, 255, 255, .10);
}

.section.bg-dark .spec-dl dd:first-of-type {
    border-top: none;
    padding-top: 0;
}

.section.bg-dark .spec-dl dd:last-of-type {
    border-bottom: none;
    padding-bottom: 0;
}

/* =========================
 Entry Section (Ticket Style)
========================= */
.entry {
    background-color: var(--bg);
    padding-bottom: 100px;
}

.entry-ticket {
    position: relative;
    background: var(--paper);
    border: 4px double var(--green);
    border-radius: 8px;
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 12px 12px 0 rgba(23, 58, 51, .15), 0 0 0 1px rgba(23, 58, 51, .1);
    text-align: center;
}

.entry-lead {
    font-family: var(--f-serif);
    font-size: 1.4rem;
    color: var(--green);
    margin: 0 0 10px;
    font-weight: 700;
    letter-spacing: .08em;
}

/* Actions (Single Button Fix applied) */
.entry-actions {
    display: flex;
    justify-content: center;
    gap: 0;
    margin: 36px 0;
}

.entry-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 24px 20px;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.2s ease;
    position: relative;
    border: 2px solid transparent;
    width: 100%;
    max-width: 480px;
    /* 制限 */
}

.entry-btn:hover {
    transform: translateY(-4px);
}

.entry-btn-primary {
    background: var(--green);
    color: #fff;
    border-color: var(--green);
    box-shadow: 6px 6px 0 rgba(198, 162, 74, .6);
}

.entry-btn-primary:hover {
    box-shadow: 4px 4px 0 rgba(198, 162, 74, .8);
    background: #122e28;
}

.entry-btn-primary .arrow {
    font-size: 1.5rem;
    color: var(--yellow);
}

.entry-btn-label {
    font-family: var(--f-bold);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: .05em;
    line-height: 1.3;
}

.entry-note-box {
    display: inline-block;
    border: 1px dashed var(--muted);
    padding: 14px 24px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.03);
    text-align: left;
    max-width: 100%;
}

.entry-note-label {
    display: block;
    font-family: var(--f-bold);
    font-size: 0.8rem;
    color: var(--red);
    margin-bottom: 4px;
    letter-spacing: .1em;
}

.entry-note-text {
    margin: 0;
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.7;
}

/* Ticket Decoration */
.ticket-corner {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--yellow);
    border-radius: 50%;
    box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.ticket-corner.top-left {
    top: 12px;
    left: 12px;
}

.ticket-corner.top-right {
    top: 12px;
    right: 12px;
}

.ticket-corner.bottom-left {
    bottom: 12px;
    left: 12px;
}

.ticket-corner.bottom-right {
    bottom: 12px;
    right: 12px;
}

/* =========================
 Footer
========================= */
.footer {
    background: #0d0d0d;
    color: #ddd;
    padding: 26px 0;
    margin-top: 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 14px;
}

.footer-title {
    font-family: var(--f-bold);
    letter-spacing: .1em;
}

.footer-link {
    display: inline-block;
    margin-left: 14px;
    color: rgba(255, 255, 255, .85);
    border-bottom: 1px dashed rgba(255, 255, 255, .4);
    padding-bottom: 2px;
}

.footer-link:hover {
    opacity: .85;
}

/* =========================
 Loader (Railway)
========================= */
#loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loader.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.rail-track {
    position: relative;
    width: 160px;
    height: 40px;
    border-top: 3px solid var(--green);
    border-bottom: 3px solid var(--green);
    overflow: hidden;
}

.rail-track .ties {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(90deg, transparent 0%, transparent 50%, var(--line-strong) 50%, var(--line-strong) 100%);
    background-size: 20px 100%;
    animation: trackFlow 1s linear infinite;
    opacity: 0.6;
}

@keyframes trackFlow {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-20px);
    }
}

.loader-text {
    text-align: center;
    color: var(--green);
    font-family: var(--f-bold);
    letter-spacing: .15em;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.text-main {
    font-size: 1.2rem;
    animation: blink 2s infinite ease-in-out;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}

/* =========================================
   Unified Responsive Queries (PC)
   769px 以上
========================================= */
@media (min-width: 769px) {
    .hero-inner {
        padding-top: 140px;
        padding-bottom: 120px;
    }

    .hero-title {
        font-size: 3rem;
        line-height: 1.4;
        margin-bottom: 30px;
    }

    .hero-ctas {
        width: 100%;
        margin-top: 40px;
    }

    .btn-cta {
        min-width: 360px;
        padding: 22px 40px;
        font-size: 1.4rem;
        letter-spacing: 0.15em;
        border-width: 2px;
        border-color: rgba(255, 255, 255, 0.8);
        background: rgba(255, 251, 242, 0.95);
        transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    .btn-cta:hover {
        transform: translateY(-5px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        background: #fff;
    }
}

/* =========================================
   Unified Responsive Queries (SP)
   920px以下 ～ 768px以下 を統合
========================================= */
@media (max-width: 920px) {

    .grid3,
    .gallery {
        grid-template-columns: 1fr;
    }

    .two-col,
    .access-row {
        grid-template-columns: 1fr;
    }

    .spec-panel,
    .spec-dl {
        grid-template-columns: 1fr;
    }

    .spec-panel {
        padding: 18px;
    }

    /* Dark Spec (Outline) */
    .section.bg-dark .spec-dl {
        gap: 10px;
    }

    .section.bg-dark .spec-dl dt {
        font-size: .82rem;
        padding-left: 12px;
        padding-top: 14px;
        margin-top: 12px;
    }

    .section.bg-dark .spec-dl dt::before {
        top: 18px;
        height: 12px;
    }

    .section.bg-dark .spec-dl dd {
        font-size: .98rem;
        padding-top: 0;
    }
}

@media (max-width: 768px) {

    /* Utility */
    .sp-br {
        display: block;
        margin: 0;
    }

    .section {
        padding: 60px 0;
    }

    .container {
        padding: 0 20px;
    }

    /* Header */
    .topbar-inner {
        flex-wrap: wrap;
        padding: 10px 0;
    }

    .brand-mark {
        width: 40px;
        height: 40px;
    }

    .brand-title {
        font-size: 0.85rem;
    }

    .brand-sub {
        font-size: 0.75rem;
    }

    .topbar .btn-ghost {
        padding: 8px 14px;
        font-size: 0.8rem;
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding-top: 40px;
        padding-bottom: 60px;
    }

    .hero-inner {
        padding: 80px 0 60px;
    }

    .hero-title {
        font-size: clamp(1.8rem, 6vw, 2.4rem);
        line-height: 1.4;
        padding: 0 10px;
    }

    .hero-lead {
        font-size: 1rem;
        line-height: 1.9;
        padding: 0 15px;
        display: inline-block;
        width: 100%;
    }

    .hero-ctas {
        width: 100%;
        max-width: 320px;
        margin: 30px auto 0;
        flex-direction: column;
    }

    .btn-cta {
        width: 100%;
        padding: 18px;
        font-size: 1.1rem;
    }

    .hero-chip {
        margin: 25px auto 0;
        width: 92%;
        padding: 12px;
        flex-direction: column;
        gap: 6px;
        font-size: 0.85rem;
        background: rgba(0, 0, 0, 0.4);
        border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .hero-meta {
        margin-bottom: 15px;
        padding: 0 10px;
        width: 100%;
        text-align: center;
    }

    .pill {
        font-size: 0.8rem;
        white-space: nowrap;
    }

    /* Section Titles */
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 30px;
        word-break: break-word;
        padding: 0 10px;
    }

    /* Appeal Images */
    .appeal-photo-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .railway-lead {
        font-size: 1.4rem;
    }

    #souvenir .paper {
        padding: 20px;
    }

    /* Spec Panel (Mobile Layout) */
    .spec-key {
        margin-bottom: 15px;
    }

    .spec-badges {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .spec-badge {
        padding: 10px;
        text-align: center;
    }

    .spec-badge .k {
        font-size: 0.75rem;
        display: block;
        margin-bottom: 2px;
    }

    .spec-badge .v {
        font-size: 0.95rem;
        margin-top: 0;
        font-weight: bold;
    }

    .spec-badge .s {
        font-size: 0.7rem;
        line-height: 1.3;
        margin-top: 2px;
    }

    .section.bg-dark .spec-dl dt {
        background: rgba(255, 255, 255, 0.1);
        padding: 4px 10px;
        border-radius: 4px;
        display: inline-block;
        width: auto;
        margin-bottom: 5px;
        border: none;
    }

    .section.bg-dark .spec-dl dt::before {
        content: none;
    }

    /* Entry Ticket */
    .entry-ticket {
        padding: 30px 15px;
        border-width: 3px;
    }

    .entry-lead {
        font-size: 1.2rem;
    }

    .entry-actions {
        margin: 25px 0;
    }

    .entry-btn {
        padding: 18px 15px;
        flex-direction: row;
        text-align: left;
        max-width: 100%;
    }

    .entry-btn .arrow {
        font-size: 1.2rem;
    }

    .entry-btn-label {
        font-size: 1rem;
    }

    .ticket-corner {
        width: 6px;
        height: 6px;
    }

    .ticket-corner.top-left {
        top: 8px;
        left: 8px;
    }

    .ticket-corner.top-right {
        top: 8px;
        right: 8px;
    }

    .ticket-corner.bottom-left {
        bottom: 8px;
        left: 8px;
    }

    .ticket-corner.bottom-right {
        bottom: 8px;
        right: 8px;
    }
}

/* =========================================
   Hero Section Mobile Optimization
   スマホ表示の最適化パッチ（CSS末尾に追加）
========================================= */

@media (max-width: 768px) {

    /* --- 1. ベースレイアウトと高さ制御 --- */
    .hero {
        /* スマホのアドレスバーによるガタつき防止 */
        min-height: 80svh;
        /* 内容が少ない場合でも最低限の高さを確保 */
        height: auto;
        /* 基本はコンテンツ量に合わせる */

        /* 上下の余白：ヘッダー分(約70px) + α を確保 */
        padding-top: 90px;
        padding-bottom: 80px;

        /* 背景画像の位置調整（必要に応じて center top などに変更） */
        background-position: center center;
    }

    /* 文字を読みやすくするために、スマホでは少し暗幕を濃くする */
    .hero-overlay {
        background:
            linear-gradient(rgba(20, 36, 31, 0.70), rgba(20, 36, 31, 0.85)),
            radial-gradient(circle at 50% 30%, rgba(198, 162, 74, 0.15), transparent 60%);
    }

    .hero-inner {
        /* コンテナ自体の余白をリセットし、親(.hero)のpaddingに任せる */
        padding: 0;
        row-gap: 24px;
        /* 各要素の間隔を均一に広げる */
    }

    /* --- 2. タイポグラフィ（文字周り） --- */

    /* 日付タグ：画面端ギリギリにならないように */
    .hero-meta {
        width: 100%;
        padding: 0 15px;
        margin-bottom: 5px;
    }

    .pill {
        font-size: 0.75rem;
        /* 少し小さくして1行に収める */
        padding: 8px 14px;
        letter-spacing: 0.05em;
        background: rgba(0, 0, 0, 0.4);
        /* コントラスト確保 */
        backdrop-filter: blur(4px);
    }

    /* タイトル：画面幅に合わせて可変サイズに */
    .hero-title {
        font-size: clamp(1.75rem, 7vw, 2.4rem);
        /* 最小1.75rem, 最大2.4rem */
        line-height: 1.35;
        padding: 0 10px;
        letter-spacing: 0.02em;

        /* 日本語の単語途中での改行を防ぐ */
        word-break: keep-all;
        overflow-wrap: anywhere;
    }

    /* キャッチコピー */
    .hero-lead {
        font-size: 1rem;
        line-height: 1.8;
        padding: 0 20px;
        /* 左右に余白を持たせて視線を中心に */
        opacity: 0.95;
        margin-top: -5px;
        /* タイトルとの距離を微調整 */
    }

    /* --- 3. アクションエリア（ボタンなど） --- */

    .hero-ctas {
        width: 100%;
        margin-top: 15px;
        /* リード文からの距離 */
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .btn-cta {
        width: 90%;
        /* 画面幅の90% */
        max-width: 340px;
        /* 大きくなりすぎないように制限 */
        padding: 18px 20px;
        /* 指で押しやすい高さ */
        font-size: 1.1rem;
        border-width: 1px;
        /* 枠線を少し細くして上品に */

        /* スマホでのタップ感を向上 */
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .btn-cta:active {
        transform: scale(0.98);
        /* 押したときに沈むアニメーション */
    }

    /* --- 4. 注釈情報の整理 --- */

    .hero-chip {
        margin-top: 15px;
        width: 92%;
        padding: 12px 15px;

        /* 縦積みに変更して読みやすく */
        display: flex;
        flex-direction: column;
        gap: 6px;

        text-align: center;
        font-size: 0.82rem;
        background: rgba(255, 255, 255, 0.08);
        /* 透過度を上げてなじませる */
        border: 1px dashed rgba(255, 255, 255, 0.25);
    }
}